Loom for weaving



July 24, 1928.

- 1,678,434 .J. H. HINDLE ET AL LOOM FOR WEAVING Filed Sept. '50, 1925 :5 sheets-sheet i' 2 i i A i A 7 Fig.3

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July 24, 1928; 1,678,434

J. H. HINDLE T AL L00" FOR WEAVING Filed Sept. 30', 1925 's Sheets-Sheet 2 Fig 2.

@ INVENTORSI 1 I "a i July 24, 1928.. 1,678,434

J. H. HINDLE ET AL LOOM FOR WEAVING all *rr stares JOHN HENRYEIINDLE AND THOMAS I-IINDLE, OF I-IASLINGDEN, ENGLAND.

LOQM ronfwnavrne.

Application filed September 30, 1925, Serial No.

This invention relates to looms more par ticularly to wide looms for weaving heavy wide fabrics.

In such looms, which may be up to over 250 inches in width, the slay beam and the crank shaft are subjected to'heavy stress due to beating up the weft and pulling forward the warp at each pick. If not sufiiciently stayed serious deflection of the slay beam takesplace, causing the weft to assume a curved structure instead of a straight line across the piece.

According to the invention the slay is supported on one, two or more intermediate slay swords of such construction as not to interfere with the healds or warps; and the crank shaft which is provided with one, two or more intermediate cranks one for each intermediate slay sword is supported by bearings, one on each side of each crank fitted to intermediate frames attached to both the front beam and the back beam of the loom so that the thrust in beating up is sustained by the back beam and'is to a large extent counter-acted or taken up by the warps placing the frame members in compression a knocking off dagger and lever beingfitted to each intermediate slay sword.

The invention will be fully described with reference to the accompanying drawings.

Fig. 1 is a transverse sectional elevation on line 1-1 Fig. 3 showing more particu larly one of the intermediate slay swords I), one of the intermediate cranks F and one of the intermediate frames A Fig. 2 is a transverse sectional elevation showing more particularly one of the end frames A, one of the end slay swords D and one of the end cranks F Fig. 3 is a plan showing more particularly the hack beam H the breast beam K one end frame A, intermediate frames A and cranks F driving shaft Gr and gears g. I

Fig. 4 is a longitudinal sectional elevation.

The loom is constructed with a rigid framing comprising two end frames or gables A which bear the weight of the structure, two longitudinal beams or girders B extending the length of the loom and affixed to the gables A and a number of transverse rails or beams C between the two longitudinal girders B which form supports for the intermediate working parts of the loom.

Intermediate of the end frames or gables one two c1. more sets (according to the 59,736. andin Great Britain December 17, 1924.

length of the loom) of intermediate brackets or frames A are fitted transversely being mounted upon the transverse rails C and secured to the longitudinal girders B. The

intermediate frames are fitted in pairs to,

give support more and crank shaft.

The slay-D and reed d are of ordinary construction for this type of loom carried by a slay sword D at ornear each end to which both the slay sole and slay cap are attached. To the slay are also fitted one, two or more slay swords D intermediate of the slay swords D to give additional support to the slay when beating up. These additional and intermediate slay swords D are of such a shape or construction as to attach to the slay sole or beam only without projecting above it and to allow free space for the healds and warp yarn which will pass over the top of them.

The slay swords D and intermediate slay swords D are mounted loosely on shafts E supported in bearing brackets e screwed or bolted to the transverse rails or beams C preferably one to each rail on each side of the sword to give rigidity to the shaft E.

The slay swords D are'fitted with crank connectingarms d and each of the intermediate slay swords D is fitted with a crank connecting arm (Z to connect with a corresponding crank so that allthe slay swords are simultaneously operated together during the beat up of the loom to equalize the pressure upon the slay throughout its length and prevent deflection or bending towards the centre.

The crank shaft F is constructed with the ordinary end cranks F and with one, two or more intermediate cranks F corresponding to the number of intermediate slay swords D The crank shaft F is supported in bearings f on the end gables A and also in a number of bearings f on the intermediate frames. A each crank being supported on two sides'to give rigidity thereto.

The crank shaft F instead of being driven from the end is driven from an auxiliary driving shaft G which conveys the power across the loom by gears g attwo or more points throughout its length to reduce tor-- sional deflection in the length of the crank shaft. The driving shaft Grv is carried in bearings g on the intermediate frames A adjacent tothe gears g. p v

The back: beam Eli and the breast beau; ET

particularly tothe cranks Ill? are attached to the end gables A in the usual way and are also afliXed to the upper ends of the intermediate frames or hearing brackets A which are bolted to the cross rails C and longitudinal girders B.

The intermediate :trames A also carry hearings on tor the tappet shaft M which is situated below the crank shaft F, and tension rods or bars it for the warps.

The warps pass from beams or creels (not shown) over the tension rods or bars N the back beam H and across he loom over the breast leam to the taking up motion and by this construction the warps being held in tension by the back beam H between it and the breast beam K the force of the beating up of the we'tt places the intermediate frai es in compression thereby greatly reducing the strain upon the fixed parts of the loom.

The shedding is otl'ected from tappet or cams on the shaft M.

The warp protector or knocking off motion may be similar to that of a tast reed loom through daggers 0 attached to each of the swords I 1 and intermediate swords D and a corresponding number of dagger levers The take-up motion is described and claimed in our Patent $51,630,428, dated May 31, 1927, and comprises two plain rollers, P, P geared together to rotate in the same direction, and an idle roller pressing against the other two the cloth being passed over the frontbeam round the two rollers with a loop round the idle roller and thence to a lap roller upon which it is wound, the tension holding the idle roller tightly against the periphery of the other two and preventing a backward movement of the cloth.

By this construction undue stresses in the loom are eliminated, deflection of the slay beam and reed avoided and a much better cloth is produced.

lVhat we claim as our invention and desire to protect by Letters Patent is 1. In a loom constructed with a slay and end swords attached thereto, breast and back beams and a plurality of intermediate slay swords attached to the slay the combination of a plurality of transverse intermediate frames mounted in pairs t o-support the parts of the loom spanning the front and back beams, one frame being adjacent to each side of each intermediate slay sword, a crank shaft positioned well up in the loom immediately below the warp threads, a plurality of intermediate cranks on the crank shaft to push the slay swords from the back beam simultaneously so that the thrust in beating up is sustained by the back beam placing the intermediate frames in compression and a plurality of hearings in pairs supported by the transverse frames one bearing beingon each side o't'each c *ank to support the crank shaft, gears to drive the crank shalt and a knocking off dagger and lever for each intermediate slay sword.

2. A loom for weaving comprising in its constructiombreast and back beams and two end gable frames, two longitudinal girders attached-thereto extending the length of the loom, a plurality ot'transverse beams bolted to the longitudinal girders, a plurality of pairs ot-interinediate transverse frames atfixed to the breast and back beams, end slay swords and a slay mounted on the slay swords, a plurality of intermediate slay swords each pivoted between a pair of the intermediate transverse frames and also attached to the slay to place the breast and back beams and intermediate trames in compression and a crank shatt, a plurality of cranks mounted thereon, bearings for the crank shaft in each intermediate frame be tween which the intermediate slay swords osoillate, a driving shaft and gears to operate the slayvswords and a knocking ojtt dagger and lever for each intermediate slay sword.

In testimony whereo't we have hereunto set. our hands.

JOHN HENRY HINDL'E. THOMAS HINDLE. 

